这都是根据题目要求而定的，有一个问题是，找出向量的分量就足够了吗？，还是说我们需要解出一条直线的方程？
It depends what the problem is asking the question is, is it enough to find the components of a vector or do we have to find the equation of a line?
我们马上就要学习直线的参数方程。
OK, so we are going to learn about parametric equations of lines.
我希望在这明白,参数方程是考虑直线的一个很好办法。
So, I hope you've seen here that parametric equations are a great way to think about lines.
实际上，直线的参数方程总是这个样子的。
In fact, parametric equations of lines always look like that.
我们主要还是关注，参数方程的运用，主要是一维的，比如直线、曲线等。
So, we have mostly focused on the use of parametric equations just for one dimensional objects, lines, and curves.
当然也有另一种方法，就是用参数方程表示这两条直线，用两条直线的方向向量作外积，从而得到切平面的法向量。
Another way to do it, of course, would provide actually parametric equations of these lines, get vectors along them and then take the cross-product to get the normal vector to the plane.
SimpleLinearRegression过程用于产生与数据相吻合的直线，其中直线具有以下标准方程。
The SimpleLinearRegression procedure is used to fit a straight line to the data in which the straight line has the following standard form.
以此直线方程校正网格区间内的系统测量坐标。
We calibrate system measure coordinates of every grid area according to the linearity equation.
用这种方法可以求得最佳拟合直线方程和最小的非线性误差。
Using this method optimum imitative straight line equation and minimum non-linear error can be got.
结合序列图像中目标特性，检测出边缘直线中特定的两条平行直线进而获得目标的中轴线方程。
According to the characters of the target in the image, the specified parallel line has been detected to get the equation of the axes.
几何求解法是利用两条测量线相交于被观测点的光学交汇测量原理，得出空间直线方程。
It USES the optical cross convergence theory, where two optical measuring lines intersect at the substance point, to induce a space straight line equation.
两点式直线方程是描述平面上任意两点所连直线的一个数学模型。
Two-point form of straight-line equation is a mathematical model delineating the straight line joined by any two points in a plane.
该方程的因变量与自变量均为试验数据的函数，直线常数中含有待求弥散参数。
The dependent and independent variables in those equations are the functions of test data, and the linear constants include the parameters to be estimated.
由此建立了骨矿含量随小儿年龄和身高、体重变化的直线方程。
Linear equation of BMC with age, height, and weight were erected.
对每一个网格节点进行亚像素处理，在相邻的网格区间节点上用标准差值对照法确定分段线性直线方程。
We handle every grid node with sub-pixel orientation method and find out subsection linearity equation between every space grid interval by standard difference contrasting method.
本文主要研究半直线上非线性方程组奇异边值问题解的存在性。
In this paper, singular boundary value problems of non-linear equation system on a half-line will be considered.
探讨在利用对应直线进行摄像机外部参数校正的过程中，如何快速简便地确定齐次方程组系数矩阵秩的问题。
In camera calibration with line correspondences, it is important to determine the rank of the coefficient matrix of the equation system in a quick and efficient way.
同时，对具有参数方程形式表示的非圆曲线进行了等间距直线逼近的节点误差分析。
While there is the analysis of node tolerance with parameter equation on approaching along a straight line with equal step.
建立了体重、顶臀长与胎龄的直线相关回归方程。
The linear correlation regression equation of fetal weight, CR length and fertilization age were set up.
就是众所周知的恒加速度的速度方程。这个方程是线性的，这条直线的斜率就是加速度。
Is the well-known equation for velocity under constant acceleration. This equation is linear; the slope of the line is the acceleration.
本文利用实验数据建立一元线性回归方程；回归直线，并用方差分析法和相关系数法检验方程的有效性。
This paper use experimental data to set up linear regression equation with unitary and regression straight line, to use variance analysis and related coefficient to test validity of equation.
对于匀速直线运动引起的图像模糊，已经提出了一种基于传播波方程的恢复方法及其恢复质量的客观评价准则。
Recently, based on the traveling wave equation, an image restoration method and its objective assessment to the quality of restored images are proposed by the present authors and others.
在数字式交鄄交变频器中，一般采用直线方程近似三角方程的方法实现余弦交点法求触发角。
An algorithm to realize the cosine wave-crossing method in digital cycloconverter is performed by using the linear equation to approximate trigonometric equation.
不同温度下同系物的诸直线存在共同交点，由此提出了交点方程。
The straight lines of homologues in different temperature have a common intersection point. The intersection point equation of homologues in supercritical fluid chromatography has been also obtained.
不同温度下同系物的诸直线存在共同交点，提出了交点方程。
There is a common intersection point for the Ink' vs. t_b straight lines of homologues at different temperatures. An equation is found for the intersection point.
采用基于空间矩的回转体像面目标直线边缘亚像素提取技术，获得回转体目标在每个像面上的两条母线的亚像素直线方程。
The subpixel line equations of two generatrices in two planes projected by the rotary object is obtained by the subpixel straight line edge detection method based on spatial moment.
对工程图纸矢量化中线条的检测，采用最佳拟合的方法，得到了线条对应的标准直线方程。
In the detection of lines in engineering drawing vectorization, the method of best coinciding was adopted to attain the according standard line equation.
根据渐近曲线的方程，具体给出主法线曲面的一族非直线的渐近曲线。
According to the equation of asymptotic curves, a family of nonlinear asymptotic curves are given to the principal normal surface.
对于两侧直线补给边界水位和补给流量不同的情况，建立了无穷级数表达的非线性方程组；
The nonlinear equation group expressed by infinite series was made up in the condition of different water level and recharge quantity on two lateral linear recharge boundary.
对于两侧直线补给边界水位和补给流量不同的情况，建立了无穷级数表达的非线性方程组；
The nonlinear equation group expressed by infinite series was made up in the condition of different water level and recharge quantity on two lateral linear recharge boundary.
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